body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  width: 80%;
  max-width: 800px;
}

h1 {
  text-align: center;
  margin-bottom: 20px;
}

form {
  display: flex;
  flex-direction: column;
}

label {
  margin-top: 10px;
}

input {
  margin-top: 5px;
  padding: 8px;
  font-size: 16px;
}

button {
  margin-top: 20px;
  padding: 10px;
  font-size: 16px;
  cursor: pointer;
  background-color: #007bff;
  color: #fff;
  border: none;
  border-radius: 5px;
}

button:hover {
  background-color: #0056b3;
}

#results {
  margin-top: 20px;
}

.chart-container {
  margin-top: 20px;
  text-align: center;
}
